The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You can estimate when it's possible to plant pumpkins in Patterson by looking at the USDA zone info.

Planting Calendar for Pumpkins

Frost tolerance for pumpkins:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Pumpkins require warm weather which tells us that you need to wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant pumpkins in Patterson is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant pumpkins and expect a good harvest is probably September. If you wait any later than that and your pumpkins may not have a chance to fully mature. You can get started a few weeks earlier by starting your pumpkins indoors.

Last Frost Date

In Patterson the average date of last frost happens on February 15. You should expect an average low temperature of 20°F in the coldest months of winter.

Keep in mind that USDA zone info for Patterson may not be accurate from year to year and the actual date of last frost is different every year. Half of the time in Patterson you get a frost after February 15 so make sure that you are ready to cover your pumpkins in the event of a surprise late frost.

USDA Zone Info for Patterson

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Patterson

You may be interested in your other planting guides for Patterson.